Shure QLXD14/SM35 QLX-D Series Single-Channel Digital Wireless Mic System with SM35 Headset -

The Shure QLXD14/SM35 is a digital wireless headset microphone system that is part of Shure's QLX-D line of digital wireless systems.

Shure QLX-D Digital Wireless delivers defined, streamlined performance with transparent 24-bit digital audio. Combining professional features with simplified setup and operation, QLX-D offers outstanding wireless functionality for demanding live sound events and installations.

QLX-D delivers outstanding wireless functionality ideal for mid-size events and installations in businesses, hotels, and government offices with conferencing spaces; schools, houses of worship, and live performance spaces.

Shure QLXD14/SM35 Includes:

• SM35 Headset Microphone
• QLXD1 Bodypack Transmitter
• QLXD4 Receiver
• Two (2) AA Batteries
• Two (2) Half-Wave Antennas
• Two (2) BNC Cables
• Two (2) BNC Bulkhead Adapters
• Zipper Bag
• Rackmount Kit
• User Guide

Shure QLXD14/SM35 Features:

• Transparent 24-bit digital audio captures every performance detail
• Extended 20 Hz - 20 kHz frequency range (microphone-dependent)
• Over 120dB of dynamic range eliminates transmitter gain adjustment
• Wide 64 MHz tuning bandwidth (region-dependent)
• Up to 17 compatible systems per 6 MHz TV channel
• Compatible with Shure Wireless Workbench 6 Control Software
• Remote control from an iOS device via ShurePlus Channels Mobile App
• AES-256 encryption for secure wireless transmission
• Professional-grade all metal construction

• Overall System
  • RF Carrier Range: 470–937.5MHz, varies by region
  • Working Range: 100 m (328 ft)
  • Note: Actual range depends on RF signal absorption, reflection and interference.
  • RF Tuning Step Size: 25 kHz, varies by region
  • Image Rejection: > 70 dB, typical
  • RF Sensitivity: -97 dBm at 10-5 BER
  • Latency: < 2.9 ms
  • Audio Frequency Response QLXD1: 20 Hz – 20 kHz (+/-1 dB, Note: Dependent on microphone type)
  • Audio Dynamic Range (System Gain @ +10): > 120 dB, A-weighted, typical
  • Total Harmonic Distortion (-12 dBFS input, System Gain @ +10): < 0.1%
  • System Audio Polarity: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (1/4-inch) output.
  • Operating Temperature Range: -18°C (0°F) to 50°C (122°F)
    • Note: Battery characteristics may limit this range.
  • Storage Temperature Range: -29°C (-20°F) to 74°C (165°F)
  • Note: Battery characteristics may limit this range.
• QLXD1 Bodypack Transmitter
  • Mic Offset Range: 0 to 21 dB (in 3 dB steps)
  • Battery Type: Shure SB900 Rechargeable Li-Ion or AA batteries 1.5 V
  • Battery Runtime @ 10 mW: Shure SB900: up to 10 hours; Alkaline: up to 9 hours
  • Dimensions (HxWxD): 3.38" × 2.57" × 0.92" (86 mm × 65 mm × 23 mm)
  • Weight: 4.9 oz. (138 g, without batteries)
  • Housing: Cast aluminum
  • Audio Input:
    • Connector: 4-pin male mini connector (TA4M)
    • Configuration: Unbalanced
    • Impedance: 1 Megohm
    • Maximum Input Level (1 kHz at 1% THD): 8.5 dBV (7.5 Vpp)
    • Preamplifier Equivalent Input Noise (EIN)(System Gain Setting = +20): -120 dBV, A-weighted, typical
  • RF Output:
  • Connector: SMA
  • Antenna Type: 1/4 wave
  • Impedance: 50 Ohms
  • Occupied Bandwidth: < 200 kHz
  • Modulation Type: Shure proprietary digital
  • Power: 1 mW or 10 mW
• QLXD4 Receiver:
  • Dimensions (H×W×D): 1.63" × 7.75" × 5.94" (41mm × 197mm × 151mm)
  • Weight: 1.71 lbs (777 g, without antennas)
  • Housing: Steel
  • Power requirements: 12 V DC @ 0.4 A, supplied by external power supply (tip positive)
  • RF Input:
    • Spurious Rejection: >80 dB, typical
    • Connector Type: BNC
    • Impedance: 50 Ohms
  • Audio Output:
    • Gain Adjustment Range: -18 to +42 dB in 1 dB steps
    • Configuration:
      • 1/4" (6.35 mm): Impedance balanced(Tip=audio, Ring=no audio, Sleeve=ground)
      • XLR: Balanced (1=ground, 2=audio +, 3=audio-)
      • Impedance:
        • 1/4" (6.35 mm): 100 Ohms (50 Ohms Unbalanced)
        • XLR: 100 Ohms
      • Full Scale Output:
        • 1/4" (6.35 mm): +12 dBV
        • XLR: LINE setting = +18 dBV, MIC setting = -12 dBV
        • Mic/Line Switch: 30 dB pad
      • Phantom Power Protection:
      • 1/4" (6.35 mm): Yes
      • XLR: Yes
    • Networking
    • Network Interface: Single Port Ethernet 10/100 Mbps
    • Network Addressing Capability: DHCP or Manual IP address
    • Maximum Ethernet Cable Length: 328 ft (100 m)
  • SM35 Headset Microphone
  • Type: Headworn Cardioid Electret Condenser
  • Frequency Response: 40 Hz - 20 kHz
  • Includes 2 windscreens, microphone clip, and user guide